Typescript Throttle

throttle.tsx

// Limit a function to run at max once per interval
// Example, throttle(callback, 100) called every 10ms. Callback will return once every 100ms.
// Example, throttle(callback, 100) called 30 times in 10ms, then not called again. Callback will return once.

export function throttle(callback:Function, time:number) {
  let free:boolean = true;
  return function(this:any){
    if(free) {
      callback.apply(this, arguments);
      free = false;
      setTimeout(() => {
        free = true;
      }, time);
    }
  }
}